California Population 2024 Census Data. 39,029,344), including age, race, sex, income, poverty, marital status, education and more. The population of california in 2023 was 38,965,193, a 0.19% decline from 2022.

This page features files containing county population totals and components of change for years 2020 to 2023. At the last official united states census carried out in 2020, the population of california was declared at 39,538,223 which makes the state the most populous by a wide margin over 2nd.